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 In the expression, 5 squared, 5 is the base because the negative sign is not in parentheses. In the expression (2)squared, 2 is the base because the negative is inside of the parentheses (14)
 A number or variable or mon/polynomial divided by itself ALWAYS equals 1. For example 4m6y/4m6y equals 1. (25)
 A scale factor between 0 and 1 reduces a figure while a scale factor greater than 1 enlarges it. (27)
 You must convert a percent to a decimal or a fraction before doing any calculations with it. (29)
 Use common sense when answering a word problem. (210)
 Absolute value is a form of grouping (GEMA) and is always positive (2Extension)
 "no more than" means "less than or equal to" (≤) (31)
 "at least" means "greater than or equal to" (≥) (31)
 Use an inverse operation to "undo" the operation in an equation. (31)
 5≤2x+3≤9 is an AND compound inequality because it is not linked by the word OR (36)
 The phrase: "between 7 and 8" is inclusive. It can be written as 7≤X≤8. When graphing inclusive inequalities, use a SOLID circle for the endpoints of the solutions. (36)
 When sketching a graph always draw the X and Y axis (41)
 Functions can be named with any letter (f, g, and h are the most common.) When writing a function (unless otherwise stated in the directions or problem) use the variable f. (43)
 When choosing values of X to graph functions, be sure to choose both positive and negative values. You might not need to graph every point to see the pattern. (44)
 Remember: f(x) = y. (51)
 The graph is not always the path. For example, if time is on the X axis and distance from the city is on the Y axis, the slope of the line is negative. In reality as the time increases, the distance increases as well. With a low time value, there will be a high distance value, or vice versa. (52)
 Pay attention to the scales on the axes. One square on the grid may not represent 1 unit. (53)
 Dividing by 0 is undefined (53)
 ( X, 0 ) is the y intercept and ( 0, Y ) is the X intercept. (58)
 The perpendicular slope of a line is the negative reciprocal. (58)
 When checking systems of equations, if an ordered pair doesn't satisfy the 1st equation, you don't NEED to check the 2nd. (61)
 0 = 0 IS a true statement. It does not mean a system has 0 solutions or no solution. (64)
 (0,0) is a good check point for systems of inequalities if it is not on the boundary line. (65)
 An ordered pair solution of a system does not need to have whole numbers, but answers to many application problems may be restricted to whole numbers. Johny can't have 4.52 pencils in his binder! (66)
 three to the sixth and 729 are considered simplified (74)
 when using the associative and commutative properties to rearrange the terms, the sign in front MUST stay with that term. (76)
 A polynomial with M terms multiplied by a polynomial with N terms has a product that before simplifying has MN terms. (77)